Island County Property Taxes Explained for Homeowners

July 9, 2026

How much are property taxes in Island County, WA?

Property taxes in Island County, Washington, generally run below the national average, with an effective property tax rate of roughly 0.67% of a home’s assessed value. However, your actual tax bill depends on your property’s assessed value and the tax district where it’s located, whether on Whidbey Island or Camano Island.


The Bill Nobody Reads Until It Arrives

Property taxes are one of the most misunderstood parts of homeownership.

Many buyers relocating to Whidbey Island arrive with expectations based on how property taxes work in their previous state, only to discover that Washington uses a different system.

The good news is that Island County property taxes are generally lower than the national average. Even so, home values on Whidbey Island remain strong, which means annual property tax bills can still represent a significant part of your homeownership budget.

We’re Jeff and Kara Vallejo, Realtors serving Whidbey Island and Anacortes, and we believe every buyer should understand how local property taxes work before purchasing a home.


How Island County Property Taxes Work

Washington doesn’t calculate property taxes using one simple countywide rate.

Instead, your annual tax bill is made up of several individual levies, which may include:

  • State school levy
  • County levy
  • City levy (where applicable)
  • Local school districts
  • Fire districts
  • Hospital districts
  • Library districts
  • Other voter-approved local levies

Because every tax district is different, two homes with the same value may have different property tax bills.

That’s why we always review the current tax bill for every property our buyers consider rather than relying on countywide averages.

Local elections also matter because voter-approved levies directly affect future property taxes.


How Property Assessments Affect Your Tax Bill

Each property is assessed by the Island County Assessor at its estimated market value.

While property values may increase over time, Washington law limits how much revenue individual taxing districts can increase through regular levies each year.

This helps moderate long-term tax increases, even when home values rise quickly.

If you believe your property’s assessed value is inaccurate, you have the right to file an appeal through the county during the annual appeal period.


What Homebuyers Should Budget

One of the simplest ways to estimate future property taxes is to review the home’s current tax bill.

From there, buyers should plan for gradual increases over time.

Many Island County homeowners pay around the county’s recent median annual property tax amount, although costs vary depending on:

  • Home value
  • Waterfront location
  • Tax district
  • Local voter-approved levies

If you’re financing your home, property taxes are often included in your monthly mortgage payment through an escrow account, making budgeting much easier.


Property Tax Relief Programs

Washington offers several programs that may reduce property taxes for qualifying homeowners.

One of the most valuable is the Senior Citizen and Disabled Persons Property Tax Exemption Program.

Eligible homeowners may qualify for reduced property taxes or exemptions based on:

  • Age
  • Disability status
  • Household income

For retirees moving to Whidbey Island, this program can significantly reduce long-term housing costs.

If you’re planning to retire here, we’ll gladly help remind you to explore available exemptions as part of your home-buying process.


Frequently Asked Questions

Are property taxes higher on Whidbey Island than in Seattle?

Generally, no.

Island County’s effective property tax rate is typically lower than many counties in the greater Puget Sound region.

However, actual tax bills depend on both the home’s assessed value and the specific tax district.


When are Island County property taxes due?

Washington property taxes are typically paid in two installments each year:

  • Spring
  • Fall

The Island County Treasurer’s Office manages payment schedules and available payment options.


Can I appeal my property assessment?

Yes.

Property owners may appeal their assessed value through the Island County Board of Equalization during the annual appeal period.

Supporting evidence such as comparable property sales can strengthen your case.

We’re always happy to help past clients gather local market information when appropriate.


Questions About a Specific Property’s Taxes?

Understanding Island County property taxes before you buy helps eliminate surprises after closing.

We’re Jeff and Kara Vallejo, Realtors with Real Broker, LLC, proudly serving Whidbey Island and Anacortes. We review the actual property tax history for every home our buyers consider, helping you build a realistic budget before making an offer.

Visit us at www.jeffandkara.com, call or text 360-632-1601, or follow us on Instagram @jeffandkaravallejo.

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